CX3 DNU pin connected to GND

Tip / Sign in to post questions, reply, level up, and achieve exciting badges. Know more

cross mob
Anonymous
Not applicable

Hello,

I have connected all the DNU pins to GND in CYUSB3064 in the schematic and board. I am having problems with the MIPI lanes now.

Does grounding the DNU pins cause any issues for MIPI interface in CYUSB3064?

Best Regards.

Pi.

0 Likes
1 Solution
YangyangC_06
Employee
Employee
750 replies posted 500 replies posted 250 replies posted

Hi Pi Zhang,

For the unsed MIPI data input pins, you could connect them to GROUND.

You could also connect G6 and H5 outside to test point. They are Hsync and Vsync.

Please DO NOT connect any other pins which marked as DNU.

View solution in original post

0 Likes
2 Replies
Anonymous
Not applicable

Hi,

Did you connect the unused MIPI lanes also to ground, as recommended? If not, please connect the unused MIPI lanes also to ground.

Regards,

-Madhu Sudhan

0 Likes
YangyangC_06
Employee
Employee
750 replies posted 500 replies posted 250 replies posted

Hi Pi Zhang,

For the unsed MIPI data input pins, you could connect them to GROUND.

You could also connect G6 and H5 outside to test point. They are Hsync and Vsync.

Please DO NOT connect any other pins which marked as DNU.

0 Likes